Organic EL display
An organic EL display of the present invention includes a plurality of organic EL devices, each including a first electrode, an intermediate insulating film disposed on the first electrode so as to have an exposed portion in which the first electrode is partially exposed, an organic layer disposed on the exposed portion, and a second electrode disposed on the organic layer. The organic layer has, on a part disposed on the exposed portion, a thick film portion disposed around the center of the exposed portion and a thin film portion disposed around the end of the exposed portion and having a smaller thickness than the thick film portion, and the thin film portions of the adjacent organic EL devices are substantially equal in width.
1. An organic EL display comprising:
a plurality of organic EL devices, each including:
a first electrode having an exposed portion thereof,
a second electrode, and
an organic portion between the first and the second electrodes, the organic portion is formed on at least the exposed portion of the first electrode,
wherein the organic portion has a thick portion and a thin portion around the thick portion, and
wherein ΔW represents a variation in a width of the thin portion between adjacent organic EL devices that are located in an area, and W A represents an average width of the exposed portions of the first electrodes in the adjacent organic EL devices in the area, and
wherein ΔW/W A is 0.05 or less.
2. The organic EL display according to claim 1 , wherein a thickness of the thin portion is 95% or less of a thickness of the thick portion.
3. The organic EL display according to claim 1 , wherein the area is a square area of 0.2 mm×0.2 mm.
4. The organic EL display according to claim 1 , wherein the area is a display area including all the organic EL devices.
5. The organic EL display according to claim 2 , wherein the plurality of organic EL devices are arranged at a first interval along a first direction and arranged at a second interval along a second direction, the second interval being shorter than the first interval, and wherein the width of the thin portion and the average width of the exposed portions is along the second direction.
6. The organic EL display according to claim 2 , wherein the organic EL device has a rectangular shape having long sides and short sides in plan view and disposed so that a direction along the long sides is substantially parallel with a first direction and a direction along the short sides is substantially parallel with a second direction.